Martin Short has addressed the death of his daughter, Katherine , describing it as “a nightmare for the family”. Katherine died on 26 February, and her body was discovered at her home in the Hollywood Hills by the Los Angeles Police Department (LAPD). The County of Los Angeles Medical Examiner’s office later confirmed she died by suicide. Only Murders in the Building star Short, 76, spoke about Katherine’s death on CBS Sunday Morning , where he said: “The understanding [is] that mental health and cancer, like my wife’s, are both diseases, and sometimes with diseases they are terminal.” Martin Short has opened up about the death of his daughter Katherine (YouTube) The actor, who is the subject of the new Netflix documentary Marty: Life is Short , was referring to the death of his late wife, Nancy Dolman, from ovarian cancer in 2010.…